Someone’s sex/gender doesn’t really have much of a bearing on whether they’re a good lover or not.
I think more women are left unsatisfied by straight sex than by lesbian sex, but that’s due to a combination of factors, including there not being enough common knowledge about the female anatomy and our culture’s ejaculation-focused sexual paradigm.
Still, I think there are many, many men who understand that sex with a woman shouldn’t be entirely focused on penis-in-vagina action – and this subset of men is going to get bigger the more that feminism marches forward and sexual education becomes more accessible.
It’s totally possible for a man and a woman to have so-called “lesbian sex” together (i.e. sex in which penis-in-vagina penetration is not the main event or not on the table at all), and it’s also possible for two women to have what could be termed “straight sex” with the addition of a sex toy or just some artfully employed fingers. Sex is not as limited and formulaic as many people seem to think.